O.S. engine MAX-15LD, Owner'S Instruction Manual

Page 1: ...ntained therein Also please study the entire contents of this instruction manual so as to familiarize yourself with the controls and other features of the engine Keep these instructions in a safe plac...

Page 2: ...TOOLS ACCESSORIES etc CARBURETOR CONTROLS STARTING THE ENGINE RUNNING IN Breaking in IF THE ENGINE FAILS TO START FINAL ADJUSTMENT CARBURETOR CLEANLINESS CARE AND MAINTENANCE PARTS REPLACEMENT EXPLODE...

Page 3: ...quest that these instructions are also passed on to its new owner SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O S ENGINE The advice which follows applies basically to ALL MODEL ENGINES and is grouped...

Page 4: ...s of sparks or anything else which might ignite it Do not smoke or allow anyone else to smoke near to it Never operate your engine in an en closed space Model engines like automobile engines exhaust d...

Page 5: ...of the most powerful highspeed engines may eventually impair your hearing and such noise is also likely to cause annoyance to others over a wide area The wearing of safety glasses is also strongly rec...

Page 6: ...ion WITHOUT the glowplug battery being reconnected Do not attempt to disassemble the recoil starter of the 12LD X and 15LD X If you do so the very strong spring inside will be suddenly ejected This ca...

Page 7: ...the fixing screws Use LOCTITE sparingly as excess sealant will have a deleterious effect on the shield material Apply a little LOCTITE to these screw holes INSTALLATION OF ENGINE Make sure that the c...

Page 8: ...at link age rod and upper plate become parallel and then retighten it securely If the linkage rod and upper plate are not paral lel throttle valve will not move smooth ly and may dam age the carburett...

Page 9: ...arts FILTER ELEMENT AND ITS REPLACEMENT The elements are already impregnated with a special filter oil As this oil is very sticky take care when handling them to prevent dust or dirt from adhering to...

Page 10: ...llowing higher rpm the plug becomes hotter and appropriately fires the fuel air charge earlier conversely at reduced rpm the plug become cooler and ignition is retarded Since the compatibility of glow...

Page 11: ...int asthenitromethanecontentofthefuelisincreased As a starting point we recommend a fuel containing 10 20 nitromethane changing to a fuel containing more nitro only if necessary When the nitro content...

Page 12: ...of the purpose made manual or elec tric fuel pumps may be used to transfer fuel directly from your fuel container to the fuel tank ELECTRIC STARTER AND STARTER BATTERY Use an electric starter with 12...

Page 13: ...nd silencer STARTING THE ENGINE RUNNING IN Breaking in The following procedure is suitable for these engines when the O S T 1020 tuned silencer and a fuel containing up to 30 nitromethane are used Use...

Page 14: ...by profuse smoke from the exhaust It is vitally important to set the throttle at the correct position before attempting to start the engine If the engine is allowed to run with the throttle too far op...

Page 15: ...o idling speed then shut it off completely with the trim lever on the transmitter To cut off the fuel supply pinch the fuel delivery tube to the carburetor Repeat this procedure until 5 more tanks of...

Page 16: ...If at this point the engine puffs out an excessive amount of smoke and the vehicle does not accelerate smoothly and rapidly it is probable that the idling mixture is too rich FINAL ADJUSTMENT In this...

Page 17: ...be reduced Finally beyond the nominal break in period a slight readjustment toward a leaner needle setting may be required to maintain performance CARBURETOR CLEANLINESS The correct functioning of th...

Page 18: ...e minute particles of foreign matter that are present in any fuel may by accumulating and partially obstructing fuel flow cause engine performance to become erratic and unreliable One of these filters...

Page 19: ...icone fuel tubing Caution The rear crankshaft bearing of this engine uses a special plastic retainer If the front housing needs to be heated to remove or replace the bearing do not allow the bearing t...

Page 20: ...LD T EXPLODED VIEW Type of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw 1 2 3 4 5 6 7 8 9 0 q w e N M3x27 C M2 6x12 15LD t r N M2 6x15 M M2 6x12 12LD...

Page 21: ...st Header Pipe E 1000 Silencer 12LD 12LD 12LD 12LD 12LD 12LD e w q 0 9 8 7 6 5 4 3 2 1 7 1608 001 7 1605 300 2 1524 000 2 1164 000 2 1152 000 2 1230 000 7 2103 410 2 1313 030 2 1163 000 2 2631 019 2 1...

Page 22: ...DED VIEW Type of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw 1 2 3 4 5 6 7 8 9 0 q w e N M3x27 C M2 6x12 15LD X t r N M2 6x15 M M2 6x12 12LD X N M2 6...

Page 23: ...00 2 1313 030 y u 7 3003 000 y 1 y 2 7 3003 100 7 3003 200 7 2404 100 104 Filter Elements 3pcs Screw Set Glow Plug A3 Gasket Set Crankshaft Crankshaft Ball Bearing Rear Crankcase Crankshaft Ball Beari...

Page 24: ...Needle Valve Assembly Throttle Stop Screw O Ring S O Ring L Mixture Control Valve Assembly Description Code No 1 1 1 1 2 2 2 1 2 2 3 4 5 6 7 8 9 0 q N M2 6x7 S 3x3 No 0 9 8 7 6 5 4 3 2 1 2 1481 900 2...

Page 25: ...05300 71605100 No 8 A3 A5 72403420 104 Filter Elements 3pcs 72103310 Super Joint Tube 15 72103020 T 1020 Tuned Silencer 4 73300305 7 73300712 Dust Cap Set For Carburettor Nipple For T 1020 Tuned Silen...

Page 26: ...2 15LD THREE VIEW DRAWING 2 11 cc 0 129cu in 14 0 mm 0 551in 13 7 mm 0 539in 3 000 30 000 r p m 0 56 bhp 29 000 r p m 273g 9 64oz Dimensions mm Displacement Bore Stroke Practical R P M Power output We...

Page 27: ...Power output Weight MAX 12LD X SPECIFICATIONS 2 11 cc 0 129cu in 14 0 mm 0 551in 13 7 mm 0 539in 3 000 30 000 r p m 0 56 bhp 29 000 r p m 336g 11 86oz Displacement Bore Stroke Practical R P M Power ou...

Page 28: ...MEMO 28...

Page 29: ...hts reserved Printed in Japan U N EQUALLED QUALITY PRECISION PERFORMAN C E ESTABLISHING THE STANDARDS OF EXCELLENC E 100000 TEL 06 6702 0225 FAX 06 6704 2722 6 15 3 Chome Imagawa Higashisumiyoshi ku O...